<%@ page language="java" import="java.util.*" pageEncoding="utf-8"%>

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1">
<title>this page can insert or delete item on MySQL</title>
</head>
<body>
    <form action="helloworld" method="post">
    插入数据<br><br>
数据索引：<input type="text"name="first"><br>
数据字段：<input type="text"name="second"><br><br>
<input type="submit"value="插 入">&nbsp;&nbsp;&nbsp;
<input type="reset"value="清 除">
</form>
<form action="drop" method="post">
删除索引：<input type="text"name="first"><br>
<input type="submit"value="删 除">
</form>
</body>
</html>